170AD-235AD👉Hippolytus quoted 1 John 5:7 (in bold words)
💥Greek: πολλὰ δὲ καὶ ἕτερα, μᾶλλον δὲ πάντα ἐστὶ μαρτυροῦντα τῇ ἀληθείᾳ. ἀνάγκην οὖν ἔχει καὶ μὴ θέλων ὁμολογεῖν Πατέρα Θεὸν παντοκράτορα καὶ Χριστὸν Ἰησοῦν Υἱὸν Θεοῦ Θεὸν ἄνθρωπον γενόμενον: ᾧ πάντα Πατὴρ ὑπέταξε παρεκτὸς ἑαυτοῦ καὶ πνεύματος ἁγίου: καὶ ταῦτ' εἶναι ὄντως τρία. (Contra Haeresin Noeti. Migne Graeca PG 10, 816B). LINK
💥English: Many other passages, or rather all of them, attest the truth. A man, therefore, even though he will it not, is compelled to acknowledge God the Father Almighty, and Christ Jesus the Son of God, who, being God, became man, to whom also the Father made all things subject, Himself excepted, and the Holy Spirit; and that these, therefore, are three. (Hippolytus. Against the Heresy of One Noetus. ANF, 2000, vol 5)LINK
💯Hippolytus' quote of "καὶ ταῦτ' εἶναι ὄντως τρία" ("and these, therefore, are three") is similar to 1 John 5:7's words "καὶ οὗτοι οἱ τρεῖς ἕν εἰσι· "["and these three are one"] (Beza 1598 Textus Receptus)